Home / 111,455.52-153,809.04-63,710.40

Finding the Fourth Proportional to 111,455.52, 153,809.04 and 63,710.40

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Solution

The fourth proportional to 111,455.52, 153,809.04 and 63,710.40 is: 87,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,455.52 : 153,809.04 = 63,710.40 : x
  2. Step 2: Convert to fraction form
    111,455.52/153,809.04 = 63,710.40/x
  3. Step 3: Cross multiply
    111,455.52x = 153,809.04 × 63,710.40
  4. Step 4: Simplify right side
    111,455.52x = 9,799,235,462.02
  5. Step 5: Solve for x
    x = 9,799,235,462.02/111,455.52
  6. Step 6: Final answer
    x = 87,920.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.